YJM problems - Noise gate...

Yngwie Malmsteen's YJM

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Fabiano33
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Re: YJM problems - Noise gate...

Postby Fabiano33 » 15 Oct 2013, 00:07

Rev, could you told me the évolution for your amp after Marshall UK repair ?
Thanks Man

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Re: YJM problems - Noise gate...

Postby Rev » 15 Oct 2013, 15:29

I'll let you know what I find out.

Noise gate processor replacement should fix it though, give that a try.

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Re: YJM problems - Noise gate...

Postby John 14:6 » 08 Nov 2013, 12:33

Did your amp get fixed?
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Re: YJM problems - Noise gate...

Postby Fabiano33 » 08 Nov 2013, 13:38

Not yet...I m always waiting for... Perhaps in two week...:(

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Re: YJM problems - Noise gate...

Postby John 14:6 » 08 Nov 2013, 13:57

Fabiano33 wrote:Not yet...I m always waiting for... Perhaps in two week...:(
I hope they get it back to you working and soon.
Friedman Smallbox 50, Fender Yngwie Malmsteen Strat, Fender Jeff Beck Strat, Fender 63 Relic Strat, Fender 56 Heavy Relic Strat and a bunch of pedals.

http://www.youtube.com/watch?v=jVaUdKQsq-s

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Re: YJM problems - Noise gate...

Postby Rev » 08 Nov 2013, 21:20

Mine is at a local tech for another noise gate, waiting for parts to arrive this week.

Although this time around I'm 100% sure it's something on my pedal board causing the problems. I've gone back to basic > guitar > cable > tuner > amp chain until it's figured out.

My 1 watt JMP is a great standby amp though! If you guys don't have one, run, don't walk, to get one...

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Re: YJM problems - Noise gate...

Postby Fabiano33 » 08 Nov 2013, 23:43

How your pedalboard cause the problem?
Mine arrived after using a new pedal board too... Just a coïncidence ? Or Marshall pb?

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Re: YJM problems - Noise gate...

Postby Fabiano33 » 09 Nov 2013, 23:59

I Read on the Internet that if you use pedals or active micro, it is necessary to use the (entry of the low because it has no same impedance... Maybe that s why pedals damage the ampli?

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Re: YJM problems - Noise gate...

Postby Mats A » 11 Nov 2013, 08:35

Fabiano33 wrote:I Read on the Internet that if you use pedals or active micro, it is necessary to use the (entry of the low because it has no same impedance... Maybe that s why pedals damage the ampli?
If you mean you have to use the low input then it seems very strange and really bad.

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Re: YJM problems - Noise gate...

Postby Fabiano33 » 11 Nov 2013, 10:18

I read it on this website : http://www.alain-lafon.fr/pages/amplis_infos.html
It´s written in french ;) but it´s explicited and he look like knew tube amp...

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Re: YJM problems - Noise gate...

Postby Machine Head » 12 Nov 2013, 13:35

You misunderstood that french text. It just says that connecting through a Y-cable can cause problems. About connecting on the hi/low inputs it says to try what you like and that's something well known.

What can damage a device is a power output. No worry with mic, guitar or line levels.
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Re: YJM problems - Noise gate...

Postby Fabiano33 » 12 Nov 2013, 14:57

Ok thanks for your answer
So I could use my pedal Board on high entry:)

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Re: YJM problems - Noise gate...

Postby Fabiano33 » 20 Nov 2013, 01:27

Hi,
My amplifier came back from the repairer
He are changed a tube and an IC5 and the result is: no change!!! I always have the same problem!!!
I am disappointed...
I made an autobias, put my guitar in the entry 1, test with several cabs and nothing...
The boost works not at all and noisegate too...
I don't understand... I have to send back to be repair again...
it's to bad:(

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Re: YJM problems - Noise gate...

Postby John 14:6 » 20 Nov 2013, 21:50

Fabiano33 wrote:Hi,
My amplifier came back from the repairer
He are changed a tube and an IC5 and the result is: no change!!! I always have the same problem!!!
I am disappointed...
I made an autobias, put my guitar in the entry 1, test with several cabs and nothing...
The boost works not at all and noisegate too...
I don't understand... I have to send back to be repair again...
it's to bad:(
They either did not work on it or did not figure out the problem correctly. Either way they need to fix it as warranty repair and cover your shipping costs. Did you send the footswitch with the amp to the the repair place? Maybe the problem is in the footswitch. Send them everything again and explain the problem you are having in as much detail as possible. Have you turned the boost level and gain knobs up really high and the gate level knob really low and still got no sound? Good luck getting it figured out quickly.
Friedman Smallbox 50, Fender Yngwie Malmsteen Strat, Fender Jeff Beck Strat, Fender 63 Relic Strat, Fender 56 Heavy Relic Strat and a bunch of pedals.

http://www.youtube.com/watch?v=jVaUdKQsq-s

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Re: YJM problems - Noise gate...

Postby Tiger » 21 Nov 2013, 03:06

John 14:6 wrote:
Fabiano33 wrote:Hi,
My amplifier came back from the repairer
He are changed a tube and an IC5 and the result is: no change!!! I always have the same problem!!!
I am disappointed...
I made an autobias, put my guitar in the entry 1, test with several cabs and nothing...
The boost works not at all and noisegate too...
I don't understand... I have to send back to be repair again...
it's to bad:(
They either did not work on it or did not figure out the problem correctly. Either way they need to fix it as warranty repair and cover your shipping costs. Did you send the footswitch with the amp to the the repair place? Maybe the problem is in the footswitch. Send them everything again and explain the problem you are having in as much detail as possible. Have you turned the boost level and gain knobs up really high and the gate level knob really low and still got no sound? Good luck getting it figured out quickly.
Regarding the footswitch. Try to unplug it from the back and see if the controls above is working manually. Given that the amp was ok from the repair shop (?) either that or the footswitch cable could be the smoking gun. As well known with the YJM100, any standard guitar cable can be used with the footswitch. Also check that all of the 4 lights on the footswitch turns on when they are selected. If not, I would suspect one of the preamp tubes. I have 3 YJM100's and have never had any problems with them whatsoever.


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